Now create a virtualenv, if you don’t know how to, you can create a
virtualenv with:

$ virtualenv .venv

Then activate it to your current tty / terminal session with:

$ source .venv/bin/activate

Good! Now let’s run this:

$ pip install -e .

This has pip, a python package manager install the python package
in the current directory. -e means --editable, which means you can
adjust the code and the installed software will reflect the changes.

As you seen above, the tmuxp command will now be available to you,
since you are in the virtual environment, your PATH environment was
updated to include a special version of python inside your .venv
folder with its own packages.

$ make test

You probably didn’t see anything but tests scroll by.

If you found a problem or are trying to write a test, you can file an
issue on github.